# Which weighs more? Lead or feathers? **URL:** \ **Category:** Factual Questions\ **Created:** [January 5, 2005, 9:01am UTC](https://boards.straightdope.com/t/which-weighs-more-lead-or-feathers/283179 "2005-01-05T09:01:25Z")\ **Posts on this page:** 3\ **Page:** 3
**Author:** ![MisterDoug](https://avatars.discourse-cdn.com/v4/letter/m/e8c25b/32.png) [@MisterDoug](https://boards.straightdope.com/u/MisterDoug)\ **Post date:** [January 11, 2005, 10:17am UTC](https://boards.straightdope.com/t/which-weighs-more-lead-or-feathers/283179/41 "2005-01-11T10:17:11Z")
> [@WhyNot](#): > > This sounds like pot logic, my friend! Where you high when you reached this epiphany? 'Cause I’ve had lots of those. 😃 That is quite amazing, because I also smoke a lot of weed and have never experienced this phenominon that people claim of weed giving you “stupid thoughts”. Researchers Find Minimal Long-Term Effects of Marijuana Use An analysis of research studies with long-term, recreational users of marijuana has failed to reveal a substantial, systematic effect on the neurocognitive functioning of users. According to researchers at the University of California, San Diego (UCSD) School of Medicine, the only deleterious side effect found was a minimal malfunction in the domains of learning and forgetting. > **[Cannabis Can Sometimes Be Experimental or a Gateway Drug](https://www.verywellmind.com/does-marijuana-lead-to-the-use-of-other-drugs-63530)** > > Many young people who smoke marijuana never progress to using other drugs, but some do go on to abuse other harder, illegal substances. Contrary to the popular opinion- if you are acting stupid, it is because you are stupid, not because weed is making you act that way… ---
**Author:** ![AppallingGael](https://avatars.discourse-cdn.com/v4/letter/a/b9bd4f/32.png) [@AppallingGael](https://boards.straightdope.com/u/AppallingGael)\ **Post date:** [January 11, 2005, 10:28am UTC](https://boards.straightdope.com/t/which-weighs-more-lead-or-feathers/283179/42 "2005-01-11T10:28:20Z")
> [@MisterDoug](#): > > That is quite amazing, because I also smoke a lot of weed and have never experienced this phenominon that people claim of weed giving you “stupid thoughts”…Contrary to the popular opinion- if you are acting stupid, it is because you are stupid, not because weed is making you act that way… Hmm, I hadn’t taken it as a putdown, actually. :smack: Did I misinterpret? ---
**Author:** ![flight](https://avatars.discourse-cdn.com/v4/letter/f/bbce88/32.png) [@flight](https://boards.straightdope.com/u/flight)\ **Post date:** [January 18, 2005, 4:25pm UTC](https://boards.straightdope.com/t/which-weighs-more-lead-or-feathers/283179/43 "2005-01-18T16:25:27Z")
> [@Greg Charles](#): > > One of your fellow engineers did point out that slug was the unit of mass in the non-metric system. I’ve never heard of a mass pound, and if there were such a thing, I would guess it would be calibrated to earth’s gravity. That is a “mass” pound would weigh about an avordupois pound. Do you have any kind of cite, or are you just repeating something your big brother told you once? 😛 Sorry I took a while to respond to this. No, pound mass is fairly common. The Earth exerts one pound force on one pound mass at sea level. Thus, you need a 32.2… conversion factor when you do convert from mass to force (at sea level). Slugs are defined such that one pound force is 1/32.2 slugs at sea level, thus ounds force are slugs\*ft/s^2. As I had said, this all arises from people coming up with a unit for force before they understood gravity well enough. As far as a cite, I would reference my time Aerospace Engineering Doctorate, but [this](http://www.unc.edu/~rowlett/units/dictP.html) should work too. You get confused by what people mean enough times and you start always writing lbm and lbf instead of lb. [Previous page](https://boards.straightdope.com/t/which-weighs-more-lead-or-feathers/283179.md?page=2)